Files
odfstudio/filter
Gabor Kelemen c0b14ab9aa tdf#146619 Use more forward declarations in include/vcl/[A-Z]*
Found after running bin/find-unneeded-includes --headersfwd include/vcl/[A-Z]*

This shaves off about 100M input, not bad for such a small amount
of files checked

This time --headersfwd skips files that contain #if defs,
in hope of not breaking builds that are not checked by CI

(...except for include/vcl/BitmapTools.hxx - this was cleaned accidentally,
due to a bug in the bin/find-unneeded-includes script that is fixed
by the previous commit 930ff2b830
- but let's keep this anyway, it seems fine)

Change-Id: Ia8e49d94f6adb3cdbedbc40ffa56dbf846c9b6e4
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/196235
Reviewed-by: Gabor Kelemen <gabor.kelemen@collabora.com>
Tested-by: Jenkins
2026-01-05 11:10:28 +01:00
..
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LibreOffice Filters

Filter registration and some simple filters (also descriptions).

Desperate splitting of code into small shared libraries for historical reasons presumably (OS/2 and Windows 3.x). The libraries produced from the code in each subdirectory of filter/source/graphicfilter are graphic format import or export filters. But they don't have uniform API. Some have either a GraphicImport or GraphicExport entry point, and are loaded and used in a uniform fashion from code in svtools/source/filter/filter.cxx. Others have different API and are loaded from other places. For instance icgm has ImportCGM, and is loaded and used by sd/source/filter/cgm/sdcgmfilter.cxx (!). Svgreader is used for "File -> Open" and then to choose the svg file. For "Insert -> Picture -> From File", see svgio/source/svgreader directory.

Filter Configuration

The filter configuration consists of two parts, the type definition in filter/source/config/fragments/types/ and the actual filter definition in filter/source/config/fragments/filters/.

Each file type e.g. text file should be represented by exactly one type definition. This type can then be referenced by several different filters, e.g. calc text, writer text.